Intrusion Detection for an Information Handling System

1. A method, comprising: determining, by an information handling system, a first value for a first characteristic of a non-repeating element coupled to a secure boundary of the information handling system such that the non-repeating element is cycled to a new non-repeating value when the secure boundary is breached; determining, by the information handling system, a second value for the first characteristic of the non-repeating element, wherein the second value corresponds to a previous time than the first value; and determining, by the information handling system, an intrusion event occurred by comparing the first value of the first characteristic of the non-repeating element with the second value of the first characteristic of the non-repeating element.

2. The method of claim 1, wherein determining the first value of the first characteristic of the non-repeating element comprises determining the first value of the first characteristics of an electro-mechanical switch.

3. The method of claim 2, wherein determining the first value of the first characteristic of the electro-mechanical switch comprises determining a position of a rotating wiper relative to a variable resistance element, wherein the position of the rotating wiper is rotated by an amount proportional to a force applied to a contact point of the secure boundary.

4. The method of claim 1, wherein determining the first value of the first characteristic of the non-repeating element comprises determining the first value of the first characteristics of a non-binary element.

5. The method of claim 1, wherein determining the first value of the first characteristic of the non-repeating element comprises reading a current value from a general purpose input/output port of the non-repeating element.

6. The method of claim 1, wherein determining the intrusion event occurred by comparing the first value of the first characteristic of the non-repeating element with the second value of the first characteristic of the non-repeating element indicating that the limit was activated comprises determining the intrusion event occurred when there is no power supplied to the non-repeating element.

7. The method of claim 1, further comprising, based on determining the intrusion event occurred, generating a security log entry indicating the intrusion event.

8. The method of claim 1, wherein the step of determining the first value and determining the second value are performed by a basic input/output system (BIOS).

9. An information handling system comprising: a chassis comprising at least one removable component forming a secure boundary; a non-repeating element configured to cycle to a new non-repeating value of a first characteristic when the secure boundary is breached; a memory within the chassis; and a processor within the chassis and coupled to the memory, wherein the processor is configured to perform the steps comprising: determining, by the information handling system, a first value for the first characteristic of the non-repeating element; retrieving, by the information handling system, a second value for the first characteristic of the non-repeating element, wherein the second value corresponds to a previous time than the first value; and determining, by the information handling system, an intrusion event occurred by comparing the first value of the first characteristic of the non-repeating element with the second value of the first characteristic of the non-repeating element.

10. The information handling system of claim 9, wherein determining the first value of the first characteristic of the non-repeating element comprises determining the first value of the first characteristics of an electro-mechanical switch.

11. The information handling system of claim 10, wherein determining the first value of the first characteristic of the electro-mechanical switch comprises determining a position of a rotating wiper relative to a variable resistive element, wherein the position of the rotating wiper is rotated by an amount proportional to a force applied to a contact point of the secure boundary.

12. The information handling system of claim 11, wherein the electro-mechanical switch further comprises a housing, a contact terminal for a general purpose input/output, a spring, a plunger, and a cover, wherein the plunger comprises the contact point for the secure boundary and the cover comprises the secure boundary.

13. The information handling system of claim 9, wherein determining the first value of the first characteristic of the non-repeating element comprises determining the first value of the first characteristics of a non-binary element.

14. The information handling system of claim 9, wherein determining the first value of the first characteristic of the non-repeating element comprises reading a current value from the general purpose input/output port of the non-repeating element.

15. The information handling system of claim 9, wherein determining the intrusion event occurred by comparing the first value of the first characteristic of the non-repeating element with the second value of the first characteristic of the non-repeating element indicating that the limit was activated comprises determining the intrusion event occurred when there is no power supplied to the non-repeating element.

16. The information handling system of claim 9, wherein the processor is further configured to based on determining the intrusion event occurred, restrict functionality of the information handling system.

17. The information handling system of claim 9, wherein the step of determining the first value and determining the second value are performed by the processor during execution of a basic input/output system (BIOS).